Switch 2P

Closest I can get you is the Nemo Switch 2 definitely the tallest two person tent I've ever seen.

Focusing on only the hydrostatic head rating is oversimplifying weather resistance too much. Too high of a hydrostatic head ends up making the tent super heavy and in most cases, it will be less breathable as well. In heavy rain it will feel stuffier and trap condensation inside. I would not want a tent made of the same material as my winter shell, it would easily weigh over 10kgs and be too warm for almost every trip. Modern tents are generally good enough that the main weather resistance I consider when comparing them is wind resistance. JustinOutdoors and MyLifeOutdoors test several good options with regards to wind that are worth watching if you want to learn more. The higher end companies will use materials that are more than water resistant enough for your listed needs. I have a silpoly Durston and it does great in wet conditions, it never sags which is nice. I also have a Nemo I use for car camping and it is far more weather resistant than people think it will be despite how small the fabric packs down. I have never gotten wet in either tent, even in storms that took down several other tents at my campsite. Some of my friends have Big Agnes, Nemo, and MSR backpacking tents. They have never have any issues in rain, and the construction is generally better than the budget oriented, heavier, Naturehike and Marmot options I see used around here. Most backpacking tents struggle in strong windstorms and the cheaper brands tend to have less guy out points and collapse more from what I have seen. Whether this is due to design/shape, pole construction, fly material, or a combination of all three depends on the tent. With regards to brands: Tarptent is based out of probably the wettest area of the continental US. The Pacific Northwest is a rainforest and gets a ton of rain so they are absolutely designing their tents to handle weather. They have a couple double wall models like the double rainbow DW that fit your needs. They also sell a "liner" for their single wall tents to make them into pseudo double wall tents that many people like. I haven't looked at their other options as much as I am fairly tall, so the Rainbow is the better option from their lineup. I think Big Agnes has several good options that are designed to handle some rough mountain thunderstorms. The Durston X-Dome 2 would likely work for you, the material won't sag, it handles wind better than most true 2 person tents, and all their tents are all going to be very weather/waterproof due to the extreme nature of the mountain weather they are designed for. The Durston X-Dome 1+ was one of the best bang/buck freestanding tents in the videos mentioned above, and they were done with earlier versions of the tent which had less guy out points than the currently sold models. For a full width 2p tent, I think the Dagger is the only Nemo tent that I would consider for two people and the Osmo fabric version is more than sufficient for heavy rain. Some of their other tents are too cramped for two or have a weaker (but lighter) pole design that reduces their wind resistance in the two or three person versions.

It’s just rain right? You’re not gonna melt right? I would suggest next time use a 2P tent with a drop cloth AND a overhead tarp But all that gear, consider at least 3P tent. I like the Nemo stuff

Nemo tents pack pretty small and are light. The new dragonfly seems like a good option. If it’s just you and another person a 2 person might be more than enough space.

Doesn’t help when you’re on top of the mountain in the pouring rain :) Edit this sounds a bit harsh. NEMO makes good tents I’ve owned a couple. These days I just prefer something a bit heavier.

Nemo makes great tents. i have two, one has been with me since 2012 and still works great. i got another one last year with more room cuz i have more dogs. i like that they sell internal floors to keep dogs from making holes with their paws. i also love how easy they are to set up, and how durable the materials seem to be.

Coleman actually makes a decent budget friendly tent that’s perfect for car camping. It’s my recommendation for those that are getting started with camping. For mid range, REI makes great tents. I’m a big fan of their half dome. When I decided to spend money on a good tent, I ran into similar paralysis. I narrowed it down to Big Agnes or Nemo and ended up going with the Nemo due to a thicker floor, since I’d be camping with kids and dogs. I’ve omen very happy with Nemo and have since purchased two more tents.